THIN-FILM SOLAR BATTERY AND METHOD OF MAKING SAME

摘要

A thin-film solar battery includes a substrate, a first electrode, a photoelectric conversion layer, and a second electrode. The first electrode, the photoelectric conversion layer, and the second electrode are laminated on the substrate. The photoelectric conversion layer has a laminated layer structure which includes at least a p-type layer and an n-type layer. The p-type layer is formed of Cu, In, Ga, and Se, and a composition ratio of Se of the p-type layer is equal to or higher than 40 atomic % and less than 50 atomic %. The n-type layer is a compound of an element of at least one Group selected from Group 2, Group 7, and Group 12, an element of Group 13, and an element of Group 16, and contains at least In as the element of Group 13 and at least S as the element of Group 16.

主权项

1. A thin-film solar battery comprising:
a substrate; a first electrode; a photoelectric conversion layer; and a second electrode, the first electrode, the photoelectric conversion layer, and the second electrode being laminated on the substrate, wherein the photoelectric conversion layer has a laminated layer structure which includes at least a p-type layer and an n-type layer, wherein the p-type layer is formed of Cu, In, Ga, and Se, and a composition ratio of Se of the p-type layer is equal to or higher than 40 atomic % and less than 50 atomic %, and wherein the n-type layer is a compound of an element of at least one Group selected from Group 2, Group 7, and Group 12, an element of Group 13, and an element of Group 16, and contains at least In as the element of Group 13 and at least S as the element of Group 16.